83773-11-9

Upstream product

• 6276-48-8 4-methyl-2,3-dihydro-1H-1,5-benzodiazepin-2-one 
• 555-16-8 4-nitrobenzaldehdye 
• 95-54-5 1,2-diamino-benzene 

Downstream Products

• 83773-21-1 1-[10-Methyl-1-(4-nitro-phenyl)-4,10a-dihydro-1H-2,3,4,9-tetraaza-benzo[f]azulen-2-yl]-ethanone 
• 130479-15-1 11H-2-amino-4-p-nitrophenyl-3-ethoxycarbonyl-5-methylpyrano (2,3-c) (1,5) benzodiazepine 
• 83773-22-2 10-Methyl-1-(4-nitro-phenyl)-2-phenyl-1,2,4,10a-tetrahydro-2,3,4,9-tetraaza-benzo[f]azulene 

Relevant academic research and scientific papers

A Novel Syntheses of Pyrano(2,3-c)(1,5)benzodiazepines

A novel synthesis of pyrano(2,3-c)(1,5) benzodiazepines from 1H(alkyl)-2,3-dihydro-4-methyl-1,5-benzodiazepin-2-ones and malonitrile or ethyl cyanoacetate is reported.

Synthesis of 2-Substituted 3-Aryl/Heteroaryl-2,3,3a,10-tetrahydro-4-methylpyrazolobenzodiazepines

2,3-Dihydro-4-methyl-1H-1,5-benzodiazepin-2-one (1A) and its N-alkyl derivatives (1B,C) undergo condensation with nitroso compounds as well as with a series of aromatic aldehydes to afford 3-anils (2) and 3-arylidene derivatives (3), respectively.Compounds 3 react with hydrazine hydrate in glacial acetic acid or with phenylhydrazine in pyridine to furnish the title compounds (4).The UV-visible spectra of all the compounds in ethanol have been recorded and the absorption bands assigned.